Nano-sized coupled photocatalyst (Sn_(0.25),Ti_(0.75))O_2 powders synthesized by a low temperature molten salt method

摘要

Nano-sized coupled photocatalyst (Sn_(0.25),Ti_(0.75))O_2 powders were successfully synthesized by a low temperature molten salt method, where the precursor, a homogeneous precipitate containing titanium and tin cations was mixed with LiNO_3 salt, nano-sized (Sn_(0.25),Ti_(0.75))O_2 powders could be synthesized at 260 deg C. The powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-VIS, respectively. Experimental results showed that the product prepared was a pure phase (Sn_(0.25),Ti_(0.75))O_2 of rutile structure without any other imparities, and composed of nano-sized and spherical particles of about 10 nm. In addition, the UV-VIS showed that the synthesized powders had a good UV absorption and visible light response.